N. A. Camalova – Ph.D. (Eng.), Associate Professor, Department of Physics, Voronezh Forest Technical University

S. A. Colichev – Ph.D. (Eng.), Senior Research Scientist, Leading Research Scientist, Air Force Academy n.a. Professor N.E. Zhukovsky and Yu.A. Gagarin (Voronezh) E-mail: ksa22111951.km@yandex.ru